Part Number: DRV8870 Hi team,
How to understand OC deglitch time 1.5us in datasheet? It means when current is over 3.7A, but device will not trigger OCP immediately, and FET can stand >3.7A current for ~1.5us with FET never being broken down?
Best…
Part Number: DRV8870 Hi team,
When I use DRV8870 in coast mode(fast decay freewheel), there is peak current>6A, even 8A, duration time is < 2uS as below, but not trigger OCP. so I want to what is the current limit of the body diode in this mode? …
Part Number: DRV8870 Hello,
My customer encountered an issue where the DRV8870 was damaged while testing its operation.
* Symptom
1. Back electromotive force is generated while changing direction without brakes.
2. As the PWM increases, the value of…
Part Number: DRV8870 Hi Team,
When the motor is working and INT is low, why does OUT have a narrow output? The customer's understanding is that there should be no output.
Regards,
Annie
Part Number: DRV8870 Hello,
My customer is testing the DRV8870 operation on their custom board.
They designed as below.
- Sense Resistor = 0.1R, Vref = 3.3V, Current limit setting = 3.3A
It is confirmed that the 3.3A limit is applied to the motor outputs…
Part Number: DRV8870 Other Parts Discussed in Thread: DRV8231A , , DRV8231 Hi team,
Could you help to share the spec. of N-FET body diode?
How much current can the body diode of the N-FET stand to make sure IC will not damage? I would like to double check…
Hey Amber,
Amber Si said: 1. As both of failure ICs have VM pin burnt out and short to GND, is it possible that the motor load is not matched? We recommend what is the suitable load range?
I don't think this is an issue with the load current - the DRV8870…
Part Number: DRV8870 Can we increase the current capacity at output by paralleling and input and output for DRV8870?
Is there any component with twice the current rating with similar feature?
Part Number: DRV8870 Hello,
When my customer turns off the motor power while using the DRV8870, a very large current is generated and sometimes the motor driver burns out.
The current measurement waveform between the power supply and the VM input of the…
Part Number: DRV8870 Hello,
My customer has some questions regarding the operation when the ISEN pin is connected to GND.
They understand that the current limiting feature of the DRV8870 feature is not used if the ISEN pin is connected to GND.
Q1) When…